Lingyang Hua1, Hongda Zhu1, Jiaojiao Deng1, Mi Tian2, Xuewei Jiang2, Hailiang Tang1, Shihai Luan1, Hiroaki Wakimoto3, Qing Xie4, Ye Gong5,6. 1. Department of Neurosurgery, Huashan Hospital, Shanghai Medical College, Fudan University, 12# Middle Wulumuqi Road, Jingan District, Shanghai, 200040, China. 2. Department of Critical Medicine, Huashan Hospital, Shanghai Medical College, Fudan University, Shanghai, China. 3. Department of Neurosurgery, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA. 4. Department of Neurosurgery, Huashan Hospital, Shanghai Medical College, Fudan University, 12# Middle Wulumuqi Road, Jingan District, Shanghai, 200040, China. neurosurgeon.qing@gmail.com. 5. Department of Neurosurgery, Huashan Hospital, Shanghai Medical College, Fudan University, 12# Middle Wulumuqi Road, Jingan District, Shanghai, 200040, China. drgongye@163.com. 6. Department of Critical Medicine, Huashan Hospital, Shanghai Medical College, Fudan University, Shanghai, China. drgongye@163.com.
Abstract
PURPOSE: The aim of this study was to thoroughly analyze the clinical characteristics of a large cohort of spinal meningioma (SM) from a single neurological center and identify risk factors associated with worse progression free survival and neurological function outcome. METHODS: Clinical information was retrieved from 483 SM and 9806 cranial meningioma cases who were operated in our center between 2003 and 2013. 194 SM patients who were followed at the main branch were used for prognostic analyses that included both recurrence free survival and neurological functions based on Modified McCormick scale (MMS). RESULTS: Females were predominant (P < 0.001). High grade tumors were not common (WHO grade II, 2.9%; grade III, 1.7%), while the clear cell subtype was frequent within grade II SMs (6/14, 42.9%). Macroscopic total resection was achieved in all SMs (Simpson grade I, 30.9%; grade II, 65.5%; grade III, 3.6%) with a low complications rate (4.6%) and provided neurological improvement in 80 patients (41.2%). Recurrence was seen in 9 cases (4.6%) and associated with high WHO grade, male, prior recurrence, and Simpson grade III. High WHO grade and high Ki-67 index were identified to be independent factors predictive of both neurological function deterioration and impaired post-operative neurological status. CONCLUSIONS: Our analysis of the largest SM cohort in scale from a single institution offers a comprehensive view of the clinical characteristics of surgically treated SM, revealing the distinct biology of SM in comparison to its cranial counterparts, and providing guidance to improve surgical management of SM.
PURPOSE: The aim of this study was to thoroughly analyze the clinical characteristics of a large cohort of spinal meningioma (SM) from a single neurological center and identify risk factors associated with worse progression free survival and neurological function outcome. METHODS: Clinical information was retrieved from 483 SM and 9806 cranial meningioma cases who were operated in our center between 2003 and 2013. 194 SM patients who were followed at the main branch were used for prognostic analyses that included both recurrence free survival and neurological functions based on Modified McCormick scale (MMS). RESULTS: Females were predominant (P < 0.001). High grade tumors were not common (WHO grade II, 2.9%; grade III, 1.7%), while the clear cell subtype was frequent within grade II SMs (6/14, 42.9%). Macroscopic total resection was achieved in all SMs (Simpson grade I, 30.9%; grade II, 65.5%; grade III, 3.6%) with a low complications rate (4.6%) and provided neurological improvement in 80 patients (41.2%). Recurrence was seen in 9 cases (4.6%) and associated with high WHO grade, male, prior recurrence, and Simpson grade III. High WHO grade and high Ki-67 index were identified to be independent factors predictive of both neurological function deterioration and impaired post-operative neurological status. CONCLUSIONS: Our analysis of the largest SM cohort in scale from a single institution offers a comprehensive view of the clinical characteristics of surgically treated SM, revealing the distinct biology of SM in comparison to its cranial counterparts, and providing guidance to improve surgical management of SM.
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